package com.atguigu.gulimall.product.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @ClassName MyCacheConfig
 * @Description TODO
 * @Author 13290
 * @Date 2022/10/8 13:46
 **/
@EnableConfigurationProperties(CacheProperties.class)
@EnableCaching
@Configuration
public class MyCacheConfig {
//
//    @Autowired
//    CacheProperties cacheProperties;

    /**
     * 配置文件中的配置失效
     *  1. 原来和配置文件绑定的配置类是这样子的
     *  @ConfigurationProperties(prefix = "spring.cache")
     *  public class CacheProperties {
     *
     *  2.让配置文件生效
     *      @EnableConfigurationProperties(CacheProperties.class)
     *
     **/
    @Bean
    RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties){

        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        //config.entryTtl()
        config= config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));

        CacheProperties.Redis redisProperties = cacheProperties.getRedis();

        //设置完自定义设置之后 设置配置文件生效
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }
        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }
        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }

        return config;
    }


}
